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CS5F-500 PDF预览

CS5F-500

更新时间： 2024-02-15 22:56:06
品牌 Logo 应用领域
富士电机 - FUJI 电路保护
页数 文件大小 规格书
12页 809K
描述
Electric Fuse, Super Fast Blow, 500A, 500VAC, 200000A (IR), Inline/holder

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中文翻译

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CS5F-500 技术参数

生命周期：ActiveReach Compliance Code：unknown
风险等级：5.72熔断特性：SUPER FAST
主体宽度：51 mm主体高度：72 mm
主体长度或直径：72 mm电路保护类型：ELECTRIC FUSE
焦耳积分标称：159000 J安装特点：INLINE/HOLDER
物理尺寸：72mm x 51mm x 72mm额定分断能力：200000 A
额定电流：500 A额定电压（交流）：500 V
表面贴装：NOBase Number Matches：1

CS5F-500 数据手册

 浏览型号CS5F-500的Datasheet PDF文件第6页浏览型号CS5F-500的Datasheet PDF文件第7页浏览型号CS5F-500的Datasheet PDF文件第8页浏览型号CS5F-500的Datasheet PDF文件第9页浏览型号CS5F-500的Datasheet PDF文件第10页浏览型号CS5F-500的Datasheet PDF文件第12页 
Low Voltage Fuses  
BLC, CR and CS types  
Super Rapid Fuses  
ꢀ Application and selection guide  
BLC, CR and CS-type – Super rapid  
fuse  
Fig. (a)  
ꢀ Fuse ratings  
When selecting fuses various factors  
such as protection, coordination and  
load, etc. must be considered.  
However, in this catalog the main  
matters such as voltage, current and I2t  
only are explained.  
When selecting fuses for  
semiconductor rectifier circuit protection  
the following conditions must be  
satisfied.  
For additional details contact FUJI.  
ꢁ
Line fuse method  
In this method the fuses are connected to  
the AC line side.  
Rated voltage  
ꢀ Conditions of application  
1. The rated interrupting current of the  
fuse must be greater than the  
estimated short circuit current of the  
circuit.  
The rated voltage of the fuse indicates  
the maximum operational voltage and  
this also indicates the root-mean-  
square value of the AC sinusoidal wave  
voltage. Select fuses having a rated  
voltage exceeding the voltage obtained  
by the formula shown in the following  
table. (Fig. 1)  
Fig. (b)  
Available short  
circuit current  
of rectifier circuit  
Rated interrupting  
current of fuse  
<
Do not select current-limiting fuses with  
rated voltages drastically exceeding the  
rectifier circuit voltage. It is necessary  
to consider the arc voltage.  
2. The let-thru current value of fuse  
must be less than the allowable 1/2  
cycle surge current value.  
Element fuse method  
In this method the fuses are connected in  
series to the semiconductor element.  
Semiconductor – 1/2  
Fuse let-thru  
<
cycle allowable surge  
current 10ms (at 50Hz)  
current value  
=
3. The total clearing I2t value which the  
fuse requires to complete interruption  
must be less than the allowable I2t  
value of semiconductor.  
Fig. 1 Rated voltage required by fuses  
Wire connection  
type  
Wiring diagram  
Rated voltage of Fuse (VFN rms)  
Fuse – total  
For line fuse  
For element fuse  
Semiconductor – I2t  
<
clearing I2t  
=
4. The rated current of the fuse must be  
greater than the average forward  
current of the semiconductor.  
>
=
>
=
Single-phase bridge  
3-phase bridge  
V
V
V
FN  
a · Ea  
a · Ea  
V
V
V
FN  
a · Ea  
a · Ea  
Ea  
Fuse –  
rated current  
Semiconductor –  
average forward current  
>
Ea  
>
=
>
=
FN  
FN  
5. The rated current and voltage of the  
fuse must be greater than those of  
the rectifier circuit.  
Ea  
08  
Fuse – rated  
current and  
voltage  
Rectifier circuit –  
current and voltage  
>
>
FN a · 3 · Ea  
=
3-phase, double star  
FN a · 3 · Ea  
=
>
Method of application  
Remarks: The 'a' is a coefficient where the regulation of the AC input voltage is taken into account. This  
is a=1.1 in case of voltage regulation 10ꢀ.  
Semiconductor rectifier equipment has  
a variety of rectifier circuits. Taking the  
3-phase bridge rectifier circuit as an  
example – Fig. (a) and (b) as shown in  
the following.  
Fig. 2 Element current and line current  
Wire connection  
type  
Wiring diagram  
Element fuse method Line fuse method  
Element current Ia  
Line current  
I
Although the number of fuses used in  
the line fuse method (a) is half the  
number used in the element fuse  
method (b), the fuses must have a  
larger current capacity.  
Id  
Id  
__  
Ia =  
I = d  
Ia  
Single-phase bridge  
3-phase bridge  
2
√
I
= 0.707d  
Id  
I
Id  
2
3
__  
Ia =  
I
=
Id  
3
√
Ia  
= 0.577dI  
= 0.816dI  
Ia  
I
Id  
Id  
__  
I
= Ia =  
3-phase, double star  
2
3
√
= 0.289dI  
Fuji Electric FA components & Systems Co., Ltd./D & C Catalog  
Information subject to change without notice  
08/45  
1...89101112

中文翻译

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